Evaluating the third and fourth derivatives of spectral data
Yeow, Y. Leong, Azali, Safura, Ow, S. Yen, Wong, May C.L., and Leong, Yee-Kwong (2005) Evaluating the third and fourth derivatives of spectral data. Talanta, 68 (2). pp. 156-164.
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Abstract
The problem of differentiating spectral data to yield the third and fourth derivatives is converted into one of solving an integral equation of the first kind. This equation is solved by Tikhonov regularization. The method of General Cross Validation is used to guide the choice of the regularization parameter that keeps noise amplification under control. The performance of this route to third and fourth derivative spectra is demonstrated by applying it to a number of published spectra. A computational problem associated with General Cross Validation has been identified.
| Item ID: | 7145 |
|---|---|
| Item Type: | Article (Research - C1) |
| ISSN: | 1873-3573 |
| Keywords: | higher derivative spectra; ill-posed problem; integral equation; spectral conversion; Tikhonov regularization |
| Date Deposited: | 18 Mar 2010 05:04 |
| FoR Codes: | 03 CHEMICAL SCIENCES > 0306 Physical Chemistry (incl Structural) > 030606 Structural Chemistry and Spectroscopy @ 60% 09 ENGINEERING > 0904 Chemical Engineering > 090499 Chemical Engineering not elsewhere classified @ 40% |
| SEO Codes: | 86 MANUFACTURING > 8606 Industrial Chemicals and Related Products > 860699 Industrial Chemicals and Related Products not elsewhere classified @ 100% |
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